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https://www.readbyqxmd.com/read/27904796/functional-hop-tests-and-tuck-jump-assessment-scores-between-female-division-i-collegiate-athletes-participating-in-high-versus-low-acl-injury-prone-sports-a-cross-sectional-analysis
#1
Philipp Hoog, Meghan Warren, Craig A Smith, Nicole J Chimera
BACKGROUND: Although functional tests including the single leg hop (SLH), triple hop (TH), cross over hop (COH) for distance, and the tuck jump assessment (TJA) are used for return to play (RTP) criteria for post anterior cruciate ligament (ACL) injury, sport-specific baseline measurements are limited. PURPOSE: The purpose of this study was to examine differences in SLH, TH, and COH distance and limb symmetry index (LSI), as well as total scores, number of jumps, and individual flaws of the TJA in 97 injury-free Division I (DI) collegiate female student athletes participating in ACL injury prone vs...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27879175/identifying-talented-track-and-field-athletes-the-impact-of-relative-age-effect-on-selection-to-the-spanish-national-athletics-federation-training-camps
#2
Javier Brazo-Sayavera, María Asunción Martínez-Valencia, Lisa Müller, Georgios Andronikos, Russell J J Martindale
This study examined the impact of relative age effect (RAE) on selection to the Spanish National Athletics Federation (RFEA) training camps (TC) between 2006 and 2013. Overall, 1,334 selected athletes at U15 years (cadet) and U17 years (juvenile) were compared against 27,711 licensed but unselected athletes for the same age groups. The results highlighted the influential role of the RAE on selection to national level track and field training camp opportunities. Interestingly, this effect was mediated by age and gender, where effects were stronger for both males and younger athletes (U15), with no evidence of RAE for older (U17) female athletes...
November 23, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27872757/sports-nutrition-knowledge-among-mid-major-division-i-university-student-athletes
#3
Ashley Andrews, Janet R Wojcik, Joni M Boyd, Charles J Bowers
Competitive athletes have goals to optimize performance and to maintain healthy body composition. Sports nutrition is a component of training programs often overlooked by student-athletes and their coaches. The purpose of this study was to examine student-athletes' sports nutrition knowledge across sex, class level, team, and completion of prior nutrition coursework. Participants included 123 mid-major Division I university student-athletes (47 females and 76 males) from baseball, softball, men's soccer, track and field, and tennis...
2016: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/27813391/physical-fitness-characteristics-of-adolescent-wushu-athletes
#4
Hsiao C Huang, Wen L Wu, Yu K Chang, I H Chu
BACKGROUND: The purpose of this study was to examine the physical fitness of wushu athletes in junior high schools and to compare their fitness with that of track-and-field and basketball athletes, as well as general junior high school students. METHODS: A total of 120 participants aged 12-15 years were recruited for this study (wushu n = 30; track-and-field n = 30; basketball n = 30; general students n = 30). Participants' height, weight, flexibility, muscle endurance, cardiorespiratory endurance, agility, power, and static and dynamic balance were assessed and compared among sports groups and general students...
November 4, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27776547/validation-of-the-fash-functional-assessment-scale-for-acute-hamstring-injuries-questionnaire-for-german-speaking-football-players
#5
Heinz Lohrer, Tanja Nauck, Vasileios Korakakis, Nikos Malliaropoulos
BACKGROUND: The FASH (Functional Assessment Scale for Acute Hamstring Injuries) questionnaire has been recently developed as a disease-specific self-administered questionnaire for use in Greek, English, and German languages. Its psychometric qualities (validity and reliability) were tested only in Greek-speaking patients mainly representing track and field athletes. As hamstring injuries represent the most common football injury, we tested the validity and reliability of the FASH-G (G = German version) questionnaire in German-speaking footballers suffering from acute hamstring injuries...
October 24, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27761664/increasing-performance-of-professional-soccer-players-and-elite-track-and-field-athletes-with-peak-performance-training-and-biofeedback-a-pilot-study
#6
Noortje H Rijken, Remko Soer, Ewold de Maar, Hilco Prins, Wouter B Teeuw, Jan Peuscher, Frits G J Oosterveld
The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field athletes were provided with four sessions of mental coaching in combination with daily neurofeedback (Group B)...
December 2016: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/27755011/mri-evidence-of-neuropathic-changes-in-former-college-football-players
#7
Caleb M Adler, Melissa P DelBello, Wade Weber, Miranda Williams, Luis Rodrigo Patino Duran, David Fleck, Erin Boespflug, James Eliassen, Stephen M Strakowski, Jon Divine
OBJECTIVE: To examine effects of participating in collegiate football on neural health several years after retirement. We hypothesized that relative cortical thinning and loss of white matter integrity would be observed in former players. DESIGN: Former NCAA Division I football players were compared with demographically similar track-and-field athletes with regard to cortical thickness and white matter integrity. SETTING: Participants participated in MRI scans at the Center for Imaging Research at the University of Cincinnati...
October 17, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27747795/oxidative-stress-in-female-athletes-using-combined-oral-contraceptives
#8
Sabina Cauci, Cinzia Buligan, Micaela Marangone, Maria Pia Francescato
BACKGROUND: Oxidative stress in female athletes is understudied. We investigated oxidative stress in sportswomen of different disciplines according to combined oral contraceptive (OC) use and lifestyle/alimentary habits. METHODS: Italian sportswomen (n = 144; mean age 23.4 ± 4.2 years; body mass index 21.2 ± 2.2 kg m(-2); sport activity 9.2 ± 4.1 h week(-1)) were analyzed; 48 % were volleyball players, 12.5 % soccer players, 10.4 % track-and-field sports, and followed by other disciplines' athletes...
December 2016: Sports Medicine—Open
https://www.readbyqxmd.com/read/27732653/seasonal-vitamin-d-status-in-polish-elite-athletes-in-relation-to-sun-exposure-and-oral-supplementation
#9
Jaroslaw Krzywanski, Tomasz Mikulski, Hubert Krysztofiak, Marcel Mlynczak, Ewa Gaczynska, Andrzej Ziemba
Vitamin D does not only influence the musculoskeletal health and mineral homeostasis but it also affects cardiovascular, endocrine, nervous, immune and mental functions, thus it is of considerable importance for both physically active people and elite athletes. However, vitamin D deficiency is common worldwide and results from inadequate endogenous skin synthesis (insufficient ultraviolet B exposure) and diet. To improve the vitamin D status elite athletes often travel to lower latitude during winter. The aim of the study was to evaluate the seasonal vitamin D status in Polish elite athletes according to the sun exposure and oral supplementation...
2016: PloS One
https://www.readbyqxmd.com/read/27732325/stress-fractures-concepts-and-therapeutics
#10
Carolina A Moreira, John P Bilezikian
CONTEXT: Stress fractures are repetitive use injuries in which recurrent strains lead to material fatigue and microarchitectural discontinuities. Stress fractures account for up to 20% of athletic injuries, more commonly sustained by women and in those who engage in track-and-field events. The pathogenesis of stress fractures is multifactorial. Although most stress fracture are reported among women who may experience menstrual disturbances, low body mass index, low energy intake and sometimes low bone mass, these individuals do not regularly seek endocrinological attention...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27708727/masseter-muscle-activity-in-track-and-field-athletes-a-pilot-study
#11
Hideyuki Nukaga, Tomotaka Takeda, Kazunori Nakajima, Keishiro Narimatsu, Takamitsu Ozawa, Keiichi Ishigami, Kazuo Funato
Teeth clenching has been shown to improve remote muscle activity (by augmentation of the Hoffmann reflex), and joint fixation (by decreased reciprocal inhibition) in the entire body. Clenching could help maintain balance, improve systemic function, and enhance safety. Teeth clenching from a sports dentistry viewpoint was thought to be important and challenging. Therefore, it is quite important to investigate mastication muscles' activity and function during sports events for clarifying a physiological role of the mastication muscle itself and involvement of mastication muscle function in whole body movement...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27660597/one-year-concussion-prevalence-in-marion-county-florida-high-school-athletes
#12
Thomas E Young, Mark Chen
OBJECTIVE: The purpose of this study was to evaluate data on concussion prevalence in 1 geographic location and to identify which sports have a higher prevalence of concussion in the Marion County, Florida, school district. METHODS: High school athletic trainers in Marion County, Florida, are required to compile statistics related to number of participants and concussions sustained in the county school district during each season. They provided the data for the 2011-2012 school year to independent analysts with the permission of the athletic director...
September 2016: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/27610314/a-wireless-sensor-system-for-a-biofeedback-training-of-hammer-throwers
#13
Ye Wang, Bingjun Wan, Hua Li, Gongbing Shan
Hammer-throw has a long-standing history in track and field, but unlike some other sports events, men's hammer throw has not seen a new world record since 1986. One of the possible reasons for this stagnation could be the lack of real-time biomechanical feedback training. In this study, we proposed to establish scientifically described training targets and routes, which in turn required tools that could measure and quantify characteristics of an effective hammer-throw. Towards this goal, we have developed a real-time biomechanical feedback device-a wireless sensor system-to help the training of hammer-throw...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27593193/differences-in-take-off-leg-kinetics-between-horizontal-and-vertical-single-leg-rebound-jumps
#14
Yasushi Kariyama, Hiroaki Hobara, Koji Zushi
This study aimed to clarify the differences between the horizontal single-leg rebound jump (HJ) and vertical single-leg rebound jump (VJ) in terms of three-dimensional joint kinetics for the take-off leg, while focusing on frontal and transverse plane movements. Eleven male track and field athletes performed HJ and VJ. Kinematic and kinetic data were calculated using data recorded with a motion capture system and force platforms. The hip abduction torque, trunk lateral flexion torque (flexion for the swing-leg side), hip external and internal torque, trunk rotational torque, and the powers associated with these torques were larger when performing HJ because of resistance to the impact ground reaction force and because of pelvic and posture control...
September 4, 2016: Sports Biomechanics
https://www.readbyqxmd.com/read/27592823/ground-reaction-forces-during-steeplechase-hurdling-and-waterjumps
#15
Shalaya Kipp, Paolo Taboga, Rodger Kram
Athletes in the 3,000 m steeplechase track and field event negotiate unmovable hurdles and waterjumps. Ground reaction forces (GRF) in the steeplechase were quantified to elucidate injury risks / mechanisms and to inform coaches. Five male and five female steeplechasers participated. GRF were measured during treadmill running, and using specially mounted force platforms, during hurdle and waterjump takeoffs and landings at 5.54 m/s (males) or 5.00 m/s (females). Results are presented as: male mean ± SD / female mean ± SD...
September 5, 2016: Sports Biomechanics
https://www.readbyqxmd.com/read/27575250/changes-in-muscle-architecture-explosive-ability-and-track-and-field-throwing-performance-throughout-a-competitive-season-and-following-a-taper
#16
Caleb D Bazyler, Satoshi Mizuguchi, Alex P Harrison, Kimitake Sato, Ashley A Kavanaugh, Brad H DeWeese, Michael H Stone
The purpose of this study was to examine the effects of an overreach and taper on measures of muscle architecture, jumping, and throwing performance in Division I collegiate throwers preparing for conference championships. Six collegiate track and field throwers (3 hammer, 2 discus, 1 javelin) trained for 12 weeks using a block-periodization model culminating with a one week overreach followed by a 3 week taper (ORT). Session rating of perceived exertion training load (RPETL) and strength training volume-load times bar displacement (VLd) were recorded weekly...
August 26, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27525183/conservative-management-of-an-isolated-grade-iii-lateral-collateral-ligament-injury-in-an-adolescent-multi-sport-athlete-a-case-report
#17
M Alex Haddad, Justin M Budich, Brian J Eckenrode
STUDY DESIGN: Case report. BACKGROUND: Isolated, grade III lateral collateral ligament knee injuries are an uncommon traumatic injury with little guidance available in the literature for conservative management and prognosis for return to sport. The purpose of this case report is to describe the clinical decision-making in both differential diagnosis and physical therapy management of an isolated grade III lateral collateral ligament sprain in an adolescent multi-sport high school athlete...
August 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27512011/elite-distance-runners-and-breastfeeding-a-qualitative-study
#18
Audrey R Giles, Breanna Phillipps, Francine E Darroch, Roisin McGettigan-Dumas
BACKGROUND: Elite female distance runners lack guidelines regarding breastfeeding while training at a high intensity. OBJECTIVES: The purpose of this research was to understand how elite female distance runners manage breastfeeding. METHODS: Semistructured interviews were conducted with 14 women who had had at least one pregnancy within the past 5 years and had achieved a minimum of the USA Track and Field 2012 Olympic Trials "B" entry standard for running for the marathon or equivalent performance for 1,500 m or longer...
August 10, 2016: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/27486404/fast-regulation-of-vertical-squat-jump-during-push-off-in-skilled-jumpers
#19
Patrick Fargier, Raphael Massarelli, Tahar Rabahi, Angelo Gemignani, Emile Fargier
The height of a maximum Vertical Squat Jump (VSJ) reflects the useful power produced by a jumper during the push-off phase. In turn this partly depends on the coordination of the jumper's segmental rotations at each instant. The physical system constituted by the jumper has been shown to be very sensitive to perturbations and furthermore the movement is realized in a very short time (ca. 300 ms), compared to the timing of known feedback loops. However, the dynamics of the segmental coordination and its efficiency in relation to energetics at each instant of the push-off phase still remained to be clarified...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27474380/what-is-the-association-of-elite-sporting-activities-with-the-development-of-hip-osteoarthritis
#20
Jonathan M Vigdorchik, Jeffrey J Nepple, Nima Eftekhary, Michael Leunig, John C Clohisy
BACKGROUND: Male athletes participating in certain elite sporting activities may be at an increased risk for development of hip osteoarthritis (OA) later in life. However, the strength of the association of participation in sporting activities with the increased risk of hip OA has not been well summarized. PURPOSE: To investigate the association of certain high-impact sporting activities with the risk of development of hip OA in elite athletes by conducting a systematic review of the available literature...
July 29, 2016: American Journal of Sports Medicine
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